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From: Mark Valentine <mark@thuvia.demon.co.uk>
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In-Reply-To: Garrett Wollman's message of Apr 22, 10:05pm
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To: wollman@lcs.mit.edu (Garrett Wollman),
	Maxim Sobolev <sobomax@freebsd.org>
Subject: Re: cvs commit: src/bin/expr expr.1 expr.y
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> From: wollman@lcs.mit.edu (Garrett Wollman)
> Date: Mon 22 Apr, 2002
> Subject: Re: cvs commit: src/bin/expr expr.1 expr.y

> If it breaks libtool, then libtool is also broken under any
> UNIX-branded operating system (such as Solaris) which seems unlikely
> to me.

  $ cat /etc/release
                         Solaris 8 10/01 s28s_u6wos_08a SPARC
             Copyright 2001 Sun Microsystems, Inc.  All Rights Reserved.
                             Assembled 12 September 2001
  $ expr -- -1 + 2
  1
  $ expr -1 + 2
  1
  $ expr '-lfoo' : '-l\(.*\)'
  foo

So Solaris bows to POSIX to discard "--", but otherwise behaves as expr(1)
has done since the dawn of time.

Open UNIX 8 behaves the same way.

Do any real implementations actually break either of the last two cases?

(I don't know how to access the GNU sh-utils CVS repository to see what Paul
Eggert's done in this regard.)

		Cheers,

		Mark.

-- 
Mark Valentine, Thuvia Labs <mark@thuvia.co.uk>       <http://www.thuvia.co.uk>
"Tigers will do ANYTHING for a tuna fish sandwich."       Mark Valentine uses
"We're kind of stupid that way."   *munch* *munch*        and endorses FreeBSD
  -- <http://www.calvinandhobbes.com>                  <http://www.freebsd.org>

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